Checklist:

• I have read and followed the contribution guidelines.
• I have read and followed the how to open a pull request guide.
• My pull request targets the main branch of freeCodeCamp.
• I have tested these changes either locally on my machine, or GitHub Codespaces.

Closes #63047

The mobile layout was always showing "Preview" as the tab label, even for Python challenges where it should say "Terminal". The desktop layout (action-row.tsx) already handled this correctly via an isPythonChallenge check, but that logic was missing from the mobile layout.

Changes:

• Added challengeType prop to MobileLayoutProps
• Added isPythonChallenge check using the same challenge types as the desktop layout
• Updated the tab label to conditionally render "Terminal" or "Preview"
• Passed challengeType from show.tsx to MobileLayout